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Single-pulse terahertz spectroscopy monitoring sub-millisecond time dynamics at a rate of 50 kHz

Author

Listed:
  • Nicolas Couture

    (University of Ottawa
    Max Planck Centre for Extreme and Quantum Photonics)

  • Wei Cui

    (University of Ottawa
    Max Planck Centre for Extreme and Quantum Photonics)

  • Markus Lippl

    (Max Planck Institute for the Science of Light
    University of Erlangen-Nürnberg)

  • Rachel Ostic

    (University of Ottawa
    Max Planck Centre for Extreme and Quantum Photonics)

  • Défi Junior Jubgang Fandio

    (University of Ottawa
    Max Planck Centre for Extreme and Quantum Photonics)

  • Eeswar Kumar Yalavarthi

    (University of Ottawa
    Max Planck Centre for Extreme and Quantum Photonics)

  • Aswin Vishnuradhan

    (University of Ottawa
    Max Planck Centre for Extreme and Quantum Photonics)

  • Angela Gamouras

    (University of Ottawa
    National Research Council Canada)

  • Nicolas Y. Joly

    (Max Planck Institute for the Science of Light
    University of Erlangen-Nürnberg
    Interdisciplinary Center for Nanostructured Films)

  • Jean-Michel Ménard

    (University of Ottawa
    Max Planck Centre for Extreme and Quantum Photonics
    National Research Council Canada)

Abstract

Slow motion movies allow us to see intricate details of the mechanical dynamics of complex phenomena. If the images in each frame are replaced by terahertz (THz) waves, such movies can monitor low-energy resonances and reveal fast structural or chemical transitions. Here, we combine THz spectroscopy as a non-invasive optical probe with a real-time monitoring technique to demonstrate the ability to resolve non-reproducible phenomena at 50k frames per second, extracting each of the generated THz waveforms every 20 μs. The concept, based on a photonic time-stretch technique to achieve unprecedented data acquisition speeds, is demonstrated by monitoring sub-millisecond dynamics of hot carriers injected in silicon by successive resonant pulses as a saturation density is established. Our experimental configuration will play a crucial role in revealing fast irreversible physical and chemical processes at THz frequencies with microsecond resolution to enable new applications in fundamental research as well as in industry.

Suggested Citation

  • Nicolas Couture & Wei Cui & Markus Lippl & Rachel Ostic & Défi Junior Jubgang Fandio & Eeswar Kumar Yalavarthi & Aswin Vishnuradhan & Angela Gamouras & Nicolas Y. Joly & Jean-Michel Ménard, 2023. "Single-pulse terahertz spectroscopy monitoring sub-millisecond time dynamics at a rate of 50 kHz," Nature Communications, Nature, vol. 14(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-38354-3
    DOI: 10.1038/s41467-023-38354-3
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    References listed on IDEAS

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    1. Takuma Makihara & Kenji Hayashida & G. Timothy Noe II & Xinwei Li & Nicolas Marquez Peraca & Xiaoxuan Ma & Zuanming Jin & Wei Ren & Guohong Ma & Ikufumi Katayama & Jun Takeda & Hiroyuki Nojiri & Dmitr, 2021. "Ultrastrong magnon–magnon coupling dominated by antiresonant interactions," Nature Communications, Nature, vol. 12(1), pages 1-9, December.
    2. Takuhiro Otosu & Kunihiko Ishii & Tahei Tahara, 2015. "Microsecond protein dynamics observed at the single-molecule level," Nature Communications, Nature, vol. 6(1), pages 1-9, November.
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